Home / 13,684.44-20,529.06-5,679.21

Finding the Fourth Proportional to 13,684.44, 20,529.06 and 5,679.21

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Solution

The fourth proportional to 13,684.44, 20,529.06 and 5,679.21 is: 8,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.44 : 20,529.06 = 5,679.21 : x
  2. Step 2: Convert to fraction form
    13,684.44/20,529.06 = 5,679.21/x
  3. Step 3: Cross multiply
    13,684.44x = 20,529.06 × 5,679.21
  4. Step 4: Simplify right side
    13,684.44x = 116,588,842.84
  5. Step 5: Solve for x
    x = 116,588,842.84/13,684.44
  6. Step 6: Final answer
    x = 8,519.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.